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add a test for intervals

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-07-29 20:32:00 -07:00
parent e2702f3ae8
commit 1915812f84
2 changed files with 29 additions and 1 deletions
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25
src/math/lp/nla_intervals.cpp
View file

@ -4,6 +4,31 @@
#include "util/mpq.h" #include "util/mpq.h"
namespace nla { namespace nla {
void intervals::test_inf() {
interval a; // [1, inf)
m_config.set_lower(a, rational(1));
m_config.set_lower_is_open(a, false);
m_config.set_upper_is_inf(a, true);
a.m_lower_dep = mk_dep(1);
interval b; // [-1,-1]
m_config.set_lower(b, rational(-1));
m_config.set_lower_is_open(b, false);
m_config.set_upper(b, rational(-1));
m_config.set_upper_is_open(b, false);
b.m_lower_dep = mk_dep(2);
b.m_upper_dep = mk_dep(4);
interval_deps_combine_rule comb_rule;
interval c;
mul(a, b, c, comb_rule);
TRACE("nla_horner_test", tout << "c before combine_deps() "; display(tout, c););
combine_deps(a, b, comb_rule, c);
SASSERT(lower_is_inf(c));
SASSERT(!dep_in_upper1(comb_rule.m_lower_combine));
}
void intervals::set_var_interval_with_deps(lpvar v, interval& b) { void intervals::set_var_interval_with_deps(lpvar v, interval& b) {
lp::constraint_index ci; lp::constraint_index ci;
rational val; rational val;

5
src/math/lp/nla_intervals.h
View file

@ -159,7 +159,10 @@ public:
m_dep_manager(m_val_manager, m_alloc), m_dep_manager(m_val_manager, m_alloc),
m_config(m_num_manager, m_dep_manager), m_config(m_num_manager, m_dep_manager),
m_imanager(lim, im_config(m_num_manager, m_dep_manager)) m_imanager(lim, im_config(m_num_manager, m_dep_manager))
{} {
test_inf();
}
void test_inf();
interval mul(const svector<lpvar>&) const; interval mul(const svector<lpvar>&) const;
void get_explanation_of_upper_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const; void get_explanation_of_upper_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const;
void get_explanation_of_lower_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const; void get_explanation_of_lower_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const;